/*
 * ds_endian.h
 *
 *  Created on: 2023年7月12日
 *      Author: DELL
 */

#ifndef UTIL_DS_ENDIAN_H_
#define UTIL_DS_ENDIAN_H_



#define _LITTLE_ENDIAN  1234
#define _BIG_ENDIAN 4321
#define _PDP_ENDIAN 3412

#ifdef __ARMEB__
#define _BYTE_ORDER _BIG_ENDIAN
#else
#define _BYTE_ORDER _LITTLE_ENDIAN
#endif


#if _BYTE_ORDER == _LITTLE_ENDIAN
#define _QUAD_HIGHWORD  1
#define _QUAD_LOWWORD 0
#else
#define _QUAD_HIGHWORD  0
#define _QUAD_LOWWORD 1
#endif

#if __BSD_VISIBLE
#define LITTLE_ENDIAN _LITTLE_ENDIAN
#define BIG_ENDIAN  _BIG_ENDIAN
#define PDP_ENDIAN  _PDP_ENDIAN
#define BYTE_ORDER  _BYTE_ORDER
#endif

#ifdef __GNUC__
#define __bswap16(_x) __builtin_bswap16(_x)
#define __bswap32(_x) __builtin_bswap32(_x)
#define __bswap64(_x) __builtin_bswap64(_x)
#else /* __GNUC__ */
static __inline __uint16_t
__bswap16(__uint16_t _x)
{

  return ((__uint16_t)((_x >> 8) | ((_x << 8) & 0xff00)));
}

static __inline __uint32_t
__bswap32(__uint32_t _x)
{

  return ((__uint32_t)((_x >> 24) | ((_x >> 8) & 0xff00) |
      ((_x << 8) & 0xff0000) | ((_x << 24) & 0xff000000)));
}

static __inline __uint64_t
__bswap64(__uint64_t _x)
{

  return ((__uint64_t)((_x >> 56) | ((_x >> 40) & 0xff00) |
      ((_x >> 24) & 0xff0000) | ((_x >> 8) & 0xff000000) |
      ((_x << 8) & ((__uint64_t)0xff << 32)) |
      ((_x << 24) & ((__uint64_t)0xff << 40)) |
      ((_x << 40) & ((__uint64_t)0xff << 48)) | ((_x << 56))));
}
#endif /* !__GNUC__ */

#ifndef __machine_host_to_from_network_defined
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define __htonl(_x) __bswap32(_x)
#define __htons(_x) __bswap16(_x)
#define __ntohl(_x) __bswap32(_x)
#define __ntohs(_x) __bswap16(_x)
#else
#define __htonl(_x) ((__uint32_t)(_x))
#define __htons(_x) ((__uint16_t)(_x))
#define __ntohl(_x) ((__uint32_t)(_x))
#define __ntohs(_x) ((__uint16_t)(_x))
#endif
#endif /* __machine_host_to_from_network_defined */


#endif /* UTIL_DS_ENDIAN_H_ */
